Home / 54,378.86-81,574.95-19,322.06

Finding the Fourth Proportional to 54,378.86, 81,574.95 and 19,322.06

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Solution

The fourth proportional to 54,378.86, 81,574.95 and 19,322.06 is: 28,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378.86 : 81,574.95 = 19,322.06 : x
  2. Step 2: Convert to fraction form
    54,378.86/81,574.95 = 19,322.06/x
  3. Step 3: Cross multiply
    54,378.86x = 81,574.95 × 19,322.06
  4. Step 4: Simplify right side
    54,378.86x = 1,576,196,078.40
  5. Step 5: Solve for x
    x = 1,576,196,078.40/54,378.86
  6. Step 6: Final answer
    x = 28,985.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.